There are three books I use regularly, which have chapters dedicated to EPDM. The Vanderbilt Rubber Handbook (RT Vanderbilt Company), Basic Rubber Technology (Baranwal and Stephens) and Rubber Technology (Reinhold). These aren't specific to EPDM, but they all contain a fair amount of...
Diamond Kote and Crystal from Franklynn Industries works well with rubber molding.
Factors influencing mold release performance
A. Type of compound (rubber, urethane, composite) being molded
1. Curing mechanism
a. Sulfur
b. Peroxide
2. Hardness of the rubber
B. Composition of mold
1...